Advanced Maintenance . 97
Replacing the Laser and Power Supply
WARNING
Switch off the main power supply to the spectrometer, wait 60 seconds
and disconnect the power cable before you open the cover of the
spectrometer. This makes sure that you are safe from electrical shock
and laser radiation.
WARNING
Do not attempt to separate the Laser from the power supply. The Laser
retains an electrical charge even when the main power is switched off.
1. Open the Main Cover of the instrument as detailed on page 84 and identify the
Laser and Power Supply (Figure 48).
Figure 48 Laser and power supply
2. Slacken the two screws securing the laser power supply.
3. Disconnect the thin black and red cables, marked Laser, from the board connector
which is located under the rear of the laser assembly.
WARNING
Be careful, the nearby source housing may be hot.
4. Unhook the spring and remove the two screws on the retaining bracket, as shown in
Figure 49.
5. Remove the laser and power supply; noting the way the cabling is routed.
Laser Laser Power su
l
Power su
l
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